40956318157 has 8 divisors (see below), whose sum is σ = 42372552600. Its totient is φ = 39540346944.

The previous prime is 40956318119. The next prime is 40956318197. The reversal of 40956318157 is 75181365904.

It can be written as a sum of positive squares in 4 ways, for example, as 8191336036 + 32764982121 = 90506^2 + 181011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40956318157 - 2¹⁹ = 40955793869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40956318157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40956318197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281983 + ... + 401779.

It is an arithmetic number, because the mean of its divisors is an integer number (5296569075).

Almost surely, 2^40956318157 is an apocalyptic number.

It is an amenable number.

40956318157 is a deficient number, since it is larger than the sum of its proper divisors (1416234443).

40956318157 is a wasteful number, since it uses less digits than its factorization.

40956318157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131615.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 40956318157 in words is "forty billion, nine hundred fifty-six million, three hundred eighteen thousand, one hundred fifty-seven".